CN1039334A - Stator coil former and manufacture method thereof - Google Patents

Abstract

Stator coil former (20) is divided into profiled part and support.Profiled part comprises element bending (46), guided bend (50) and (48) three kinds of profiled parts of involute.The above two can use repeatedly, the latter needs design separately, parts (46) are supported on the platform (52), (52) be supported on the stator coil middle part, workbench (56) is support component (48) directly, the auxiliary table (66) that parts (56) support is supporting parts (50), and the method that constitutes profiled part is, according to describing and the preprocessing parts are finished mach one group of data come establishment step numerical control instruction each parts.

Description

Stator coil former and manufacture method thereof

The present invention relates to the stator coil former, more particularly, relate to such as the stator coil former of making the high-rating generator of using in the power plant.

The generator that is used to generate electricity in each power plant has the many stator coils that formed by two " half coils ".Each half coil can reach 11 meters long (36 feet) in the high-rating generator, and may be around 60 circles in small generator.May be in high-rating generator around 120 circles, stator coil is generally rectangular cross section, and its width can reach 5.08 centimetres (2 inches), and height can reach 15.24 centimetres (6 inches) and be piled up by a plurality of undersized insulated copper bundle conductors and form, as shown in Figure 3.

Usually, each bundled insulated conductors stacks gradually together, except last four to six feet in each end, respectively piling up between the bundled insulated conductors and all insert resin impregnation around it wash the insulation of wheel thing, and be cured (insulant melts cure hard then), keep straight simultaneously.Then, each of half coil is end formed to be a kind of compound curve-like, thereby between the erecting stage of generator, the guiding end of each half coil can be connected with each other and form a complete coil.

Stator coil former, example be former 20 as shown in Figure 1, is generally used for forming the compound curved shape in half coil end.The half coil middle part 22 of solidifying is fixed on a former side far away, the linear position 24a that end 24 is represented from dotted line bends to the position that solid line represents makes it accord with each profiled surface 26,28 and 30, so just obtain a stator coil end 24b who resembles the shaping shown in Fig. 2.

Stator coil end former 20 conventional shown in Fig. 1 is made of following mode.Profiled surface 26 is parts of the cone of trying to achieve according to the size of motor, and the path that stator coil is crossed over cone is decided by the size of generator and is linked to be span between two half coils of a coil.The inner surface 26 of cone is an involute shape by boundary.Because having adopted involute shape thereby being arranged between the stator coil end adjacent on the cone surface 24 is uniformly at interval, has kept minimum electrical distance.The shape of half coil is by proposing in the project blue print.

In order to form the part of cone with the hard layer crib block, moulder people utilize project blue print to make model as shown in fig. 1.Usually the hard layer crib block is that the shape that determines according to project blue print is come by manual carving.Secondly carve a groove by hand at outer surface of cone, and embed a Brass shims 32 and be damaged to prevent hardwood.Having the shelf 34 on surface 28 and 30 and 36 wooden mold then respectively also all is that manual carving come, to be engaged in an appropriate location on the cone surface 26.Usually there are three to four shelves 34 fixing successively mutually.Each fan-shaped afterbody (not shown) is carved to such an extent that enter into the wooden model end and align suitably to cooperate shelf 34.Utilize the wooden model of these shelves 34 and 36, carry out cast aluminium, the polishing filing also is assembled on the cone face 26 of former 20 by hand.By shelf components 34,36 and Brass shims 32 boring, screw thread on the car then, so shelf 34 and 36 can be by screw-driving, then boring (not shown) on each shelf 34 and 36 thereby in the end formed and solidification process of coil each anchor clamps, heating element and temperature control equipment (not shown) can be inserted into end winding 24 usefulness and manually beat, prize and wedge and be shaped and put in place, and it is in position clamped, heating element is inserted into gives in each good hole of subdrilling, insulant is filled out between each bundle conductor and after twining each wire harness be cured simultaneously.After the insulant cure hard, stator coil end 24b just remain setting up period fixed shape.

Stator coil embeds as top and bottom half coil around the generator unit stator groove, and each top and bottom half coil all have the front and rear termination of different geometrical size.So every generator is needed four stator coil formers at least, connecing at each side of generator all needs a top and a bottom half coil.The generator that rated capacity is lower has equal pitch winding, and need only can being produced by the coil molding device 20 of routine, a kind of stator coil termination 24 of shape gets final product.In the bigger generator of rated capacity, have six coil groups, group of ratio is to separate a bigger distance between every group between interior each coil.So have slightly different length at one group with interior each half coil, and coil forming device 20 will be changed to handle the length of these variations.The bigger generator of rated capacity is produced the required cost of coil former to the result and the time increases very big.

One object of the present invention is exactly to produce the stator coil former that a kind of data of being set up by computer limit the stator coil shape, only needs for 15% time usually.

Further purpose of the present invention provides a kind of method of making the stator former, utilizes element and guided bend molded component to form the difformity stator coil.

By providing a kind of stator coil end building mortion to achieve the above object, this device comprises: at least one molded component, and it has the profiled surface corresponding to a kind of shape, there the shaping stator coil; An and supporting construction that is used to support at least one molded component.Have at least two molded components better, best is to have three, and each molded component has a parting surface corresponding to adjacent molded component parting surface.In the stator coil end forming process, have at least two molded components to face toward and the levelling aligning mutually, so aimed at by levelling with its parting surface.Supporting structure preferably supports institute by the individual components corresponding to each molded component and forms.

Among the best embodiment of the present invention, molded component comprises: element bending forming parts, one can with involute molded component and the guided bend molded component that can aim at the involute molded component of element bending forming component alignment.These molded components all support by with bolt element bending forming parts being connected to a kind of device, this device is used to support unfashioned stator coil, having a workbench to be used for directly supporting the guiding molded component is bent to form the parts levelling with involute and aims at, with an auxiliary table that is being supported by workbench, it is used for directly supporting the guided bend molded component and aims at the levelling of involute molded component.

Preferably constitute according to a kind of stator coil end former of the present invention, promptly limit the step of stator coil end shape with a three-dimensional space data group with the method that comprises the steps; The step of being instructed by each numerical control of data set foundation is used for the profiled surface that cutting workpiece produces the corresponding stator coil end shape; And adopt step by the Digit Control Machine Tool cutting workpiece of each numerical control commands for controlling.

These purposes together with other purpose and advantage will be in the back to clearer and more definite in the detailed description of structure and operating aspect and the claim, the accompanying drawing that forms parts in addition is for reference, each same numeral shows same parts among the figure.

Fig. 1 is the perspective view of the stator coil end former of a routine;

Fig. 2 is the perspective view after a stator coil end is shaped;

Fig. 3 is the perspective view by a stator coil end former of the present invention;

Fig. 4 is the perspective view of element bending forming parts;

Fig. 5 is the perspective view of a workbench;

Fig. 6 is the perspective view of crooked pin of element bending forming parts and element and dowelled joint device;

Fig. 7 is a guided bend molded component and the perspective view that has the guided bend pin of connector;

Fig. 8 is the flow chart that constitutes the method for stator coil former by the present invention;

Fig. 9 and Figure 11 are that the flow chart that produces each numerical control instruction method is used for processing work generation molded component;

Figure 10 is the perspective view for process and assemble involute molded component; And

Figure 12 is the perspective view that gives machine component bending forming parts.

Usually the shape of design stator coil end adopts computer program to assist.This program from 1850s or the sixties in industrial employing, usually and have a data set of each representative point on the three dimensions.Similar calculating can or be taken from an Analysis of Nested Design drawing by hand computation, especially from each drawing that produces on the computer aided design system, by wherein providing curvature and size.

The data set that above-mentioned a kind of method produces comes boundary to go out a stator coil end 24b, as shown in Figure 2, no matter the length of stator coil end 24 how, has 26 cross sections promptly to be enough to limit its shape.Each limit of cross section and coil intersects at place, four angles, and cross section 38 places in involute part 40 the most as seen.One of four angles will be positioned on the intersection point of the profiled surface of stator coil former, and the each point at these angles of boundary is called " simulation points ".Cross section 38 mid points 39 are exactly a simulation points.Second to the 4th simulation points of beginning is positioned at 20 places, middle part of stator coil straight line, and simulation points 4-12 defines element sweep 42, and simulation points 12-18 defines involute part 40 and simulation points 18-26 defines guided bend part 44.For the less point of 40 needs of involute part, because its follows the tracks of cone surface and crooked not really fast.Element sweep 42 and the relative many simulation points in guided bend part 44 places are because curve is steep and comparatively complicated.Certainly might adopt at interval uniform simulation points, but in involute part 40, not need a large amount of simulation points.

Therefore these data are applied to process one or more molded component to produce the profiled surface corresponding to the stator coil end shape that is formed in the mode that describes in detail later.As shown in Figure 3, need two at least, preferably three forming face parts.A molded component is element bending forming parts 46, and another is an involute molded component 48.Because these two component alignment constitute continuous face 26a and 28a, they can form as single molded component, but wish that at least one guided bend molded component 50 separates, because have only surperficial 28a and involute molded component 48 coplanes.Profiled surface 30a is on the relative side of stator coil end 24b.

Element bending forming parts 46 separate formation with involute molded component 48 and have lot of advantages.The first, in many different generators, the curvature of element bending forming parts 46 is identical or closely similar usually.Consequently may adopt same or analogous element bending forming parts 46 with different involute molded components 48 and guided bend molded component 50.

The second, each molded component 46,48 preferably, or 50 all supported with minimizing by independent support and affact the power that supports involute molded component 48 bracket components.Element bending forming parts 46 are connected on the support 52 of stator coil middle part and element bending forming parts.Usually, stator coil middle part 20 is supported on the platen and only need provides some screws with Connection Element bending forming parts 46 in platen.As shown in Figure 4, in element bending forming parts 46, be drilled with the hole 54 that penetrates and be, adopt that the boring (not shown) of appropriate location fixes element bending forming parts 46 in platen 52 for element bending forming parts 46 are fixed on the platen 52.

Involute molded component 48 is preferably supported by workbench 56, and this workbench can tilt and can stand the required power of crooked stator coil end 24, for example 4448N(1000 pound along two different axis).In other words, for involute molded component and guided bend molded component 48,50, workbench 56 must provide a firm and adjustable support.An embodiment of this workbench as shown in Figure 5, it has the center bearing bracket 58 of a band universal joint 60 and can pin the support 62 in bight.Other configuration also is possible, as to provide vertical and adjust along two vertical axis of bench-top 64 also be possible.

Guided bend molded component 50 preferably supports a wedge as shown in Figure 3 by an auxiliary table 66.On all possible angle between guided bend molded component 50 and the involute molded component 48, if auxiliary table 66 can be adjusted with support guide bending forming parts 50 in the bottom that involute molded component 48 projectioies are come, then provide a simple wedge promptly enough, if the angle for a wedge changes too greatly, a then available little adjustment platform replaces.Under both any situations, the method that auxiliary table 66 is fixed on the workbench 56 can be realized that auxiliary table can be by each the opening (not shown) in the platform top 64 of workbench 56 by the downside that is slidingly attached to auxiliary table 66 such as a bolt (not shown).For fixing auxiliary table 66 is aligned on the position of line directly supporting guided bend molded component 50 and involute molded component 48, also may adopt any other method.

In order to help stator coil end 24 bendings to make it accord with profiled surface 26a on molded component 46,48 and 50, the shape of 28a and 30a comprises the crooked pin 76 of an element and a guided bend pin 78 in most preferred embodiment.These pins 76,78 are used as the fulcrum of curved rod or hydraulic means to face toward the curve in profiled surface 28a and the 30a generation stator coil.As shown in Figure 6, the crooked pin 76 of element is supported by the crooked dowelled joint device 80 of element, and this connector is connected on the element bending forming part stent (platen) 52 via pin hole 82.The crooked dowelled joint device 80 of element is supported on element bending forming parts 46 with the crooked pin 76 of element and is the center of arc substantially.In other words, the profiled surface 28a on the element bending forming parts 46 comprises having an approximate Cylinder that overlaps axis with crooked pin 76 axis of element substantially.So only need change crooked pin 76 of element and connector 80 when radius of curvature changes gets final product.

In order to simplify the assembling of guided bend pin 78, provide one guided bend pin 78 to be assembled on the workbench 56 indirectly by the guided bend dowelled joint device 84 that is connected on the guided bend molded component 50.As shown in Figure 7, guided bend dowelled joint device 84 is inserted into a groove 86 in the guided bend molded component 50 by an opening on guided bend molded component 50 rear sides 88, groove 86 in guided bend molded component 50 and pin hole 90 are machined into an appropriate location, and the profiled surface 30a that makes guided bend dowelled joint device 84 be arranged in guided bend molded component 50 is the center of arc substantially.Guided bend dowelled joint device 84 will be processed individually to make and be matched with groove 86 and hole 90, and this groove and Kong Yuxian processing are in guided bend molded component 50.

As the shelf 34 and 36 that is applied to traditional stator coil forming device 20, at parts 46,48 and 50 internal drilling 92-94, as shown in Figure 3.Each hole 92 is used for adapter sleeve hook anchor clamps (not shown), and this anchor clamps during curing snap into the appropriate location to stator coil end 2424b.Preferably at the inside in each hole tap out so that each anchor clamps is fixed on parts 46,48 and 50.All the other each holes 93 and 94 are the usefulness of inserting each heating element and each temperature control component for the curing that heating and control fixed subcoil insulating are provided respectively.

For the best method that constitutes said stator coil forming device as shown in Figure 8.As previously mentioned, by the engineer each input reference is input to step 100 usually, arrives stator coil involute program step 102 then, arrive data message step 104 again, it is the shape of four kinds of stator coil ends at least that these data define.This program has also typically produced other input step 105, comprise drawing and for material each the instruction etc.As mentioned above, data message step 104 may be produced by other method, for example hand computation or measure from each engineering drawing.

Data message includes along profiled surface 26 with the crosspoint of profiled surface 28 and 30 26 simulation points together totally in described embodiment.Each simulation points has three copline points in other three limits of stator coil and intersection perpendicular to a plane of profiled surface.This just provides 104 points altogether, these points are enough to limit the curvature of stator coil end, but in step 106, also to carry out lot of data and handle (being specified in down) to set up numerical control (NC) instruction step 108, for example, APT(simulation, program, tape) source code.So that machine-shaping parts 46,48 and 50.

In fact, all numerical control machines all have a rearmounted processor 110 and can compile the APT source code and become compiling NC(Numerical Control) instruction step 112.These instructions are used to give five axis NC procedure of processings 114 of processing component step 116, to produce 12 parts steps 117, because each stator coil end has four kinds of difformities, each shape needs three molded components (being that four kinds of each in multi-form all will have three molded components in the stator coil end).Possible some parts, for example in order to be used for different involute molded components 48, element bending part 46 and guided bend parts 50 had carried out processing, and just involute parts 48 and some new element bending parts 46 and guided bend parts 50 need be processed.

At 12 parts 117 processed or from each parts of previous processing, identify after, three parts (will be used for shaping stator end winding one) are assembled on the support and aim at each parting surface levelling in step 118, and each molded component that is supporting is then aimed at being aligned with the levelling of unshaped stator coil step 120.Preferably stator coil is protruding, promptly gives having bent to and involute molded component 48 similar shapes earlier. Step 122 and 124 forms and solidifies stator coil in Fig. 8 at last.

Set forth the each several part of the described coil forming device of step 106 machining software among Fig. 8 referring now to Fig. 9 and 11.First step 126 is for being nominal data along the axle of being convenient to process, when the axle system that utilizes this demarcation might process single molded component, simultaneously aforesaid this molded component is separated into three parts, preferably controls these points and produce one group of change point and demarcate one group of processing axis.The conversion of this system and rotation are well-known digital processing processes, are easier to be applied to arbitrary group of three-dimensional point.These are corresponding to element bending part 46, and the each point of involute parts 48 and guided bend parts 50 each parts is transformed into individually each parts can both be processed to peak efficiency.For example, this involute molded component 48 is preferably along the diagonal location of as shown in figure 10 a processing locator 127.On the other hand, this element bending part 46 and guided bend parts 50 preferably deflect into processing locator 127 and make parting surface do not processed the obstruction of locator 127 and process.

After the each point that limits parts has been transformed, setting up each annex point with insertion (step 128-136) along the limit that connects each point formation.Nearly all each limit is an arc, and can set up these camber lines between the each point in the data set of this conversion with known technology.In this most preferred embodiment, calculate the air line distance (arc length) between each adjacent simulation points, and in step 130, be converted into many line segments that each section has predetermined length with this string is broken.The line segment of the predetermined length that these are divided into by element bending forming parts 46 and guided bend molded component 50 is preferably 1/5 of each line segment predetermined length in this involute molded component 48.

In step 132, calculate the center of an arc that limits by three adjacent simulation points, in step 134, the each point of equidistant from distance on this string is projected on this arc then.With this method (profiled surface that this stator coil surfaces is equivalent to molded component) carried out on all four limits that limit this stator coil surfaces repeatedly.But, the number of line segment is preferably once determined (for example, to along this profiled surface 28a and 26a intersection by limit that each simulation points limited) and along equally spaced apart at the string between the corresponding each point on other three limits.Indicate the institute that limits a profiled surface element at testing procedure 136 and have a few under the processed entirely as yet situation, this process is promptly carried out repeatedly.So, each point is promptly by along assigning into simulation points 4 corresponding to four limits of the stator coil of this profiled surface 26a and 28a on these element bending forming parts 46 and the 12(hypothesis is being the bar straight line between simulation points 3 and 4) between each arc on.For the involute molded component 40 of stator coil, each point is to assign between simulation points 12 and 18; For guided bend molded component 50, each point is assigned between simulation points 18 and 26.

After the each point that all three limits are used has been defined, in step 138, calculate each vector, be used on each limit that limits a forming face, assigning each point, for instance, it is forming face 26a that forming face refers to for element bending forming parts 46 and involute molded component 48, or is forming face 30a for guided bend molded component 50.This vector is determined the trend (Figure 12) of a cutting tools blade 140 during processing, so it always is parallel to the surface of desiring to be formed.

Each insertion point along three limits limits the straight line line segment that each surface is similar to the connection each point.Therefore, only need to produce a string instruction, it moves to pointwise cutting tools blade 140 in a straight line, this instrument blade 140 is to move towards along the vector corresponding to these points, and little by little move this instrument blade 140, make it touch the surface that is away from the limit, boundary 141 a bit and cut along this limit, boundary 141 up to this instrument blade 140 from rigidly connecting.For this method of finishing this work is a known technology, and there is commercial programs to be used for producing the numerical control instruction according to the surface that each point limited along four limits.One of source of this program is exactly the computer image (Computervision of Bedford) of State of Massachusetts, US hundred moral Ford.But needed each step is as follows with reference to Figure 10 summarized introduction.

At first, determine from where beginning and stopping processing with step 142.Shown in the square frame 116 of Fig. 8, the processing of processing component is respectively given in NC instruction preferably control.With Figure 12 is the element bending forming parts 144 that example illustrates a preprocessing.Have sizable resemblance between each end winding of stator, the surperficial 28b of the surperficial 26b of promptly the most about 3.8 centimetres (1.500 inch) and 0.953 centimetre (0.375 inch) typically is cut respectively corresponding to profiled surface 26a and 28a during processing.No matter these profiled surfaces be preprocessing maybe must be to cut by a physical treatment piece, wish that a fixed position makes this instrument blade 140 just leave this processing block and can move to this processing block soon before beginning processing.

Also must make the outer side edges skew certain distance of this instrument blade 140 according to a datum mark in the step 142 from this blade 140.Usually this datum mark is arranged along this datum axis, and so, the head of the scope of activities of blade 140 and blade 140 or the arbitrary difference between tip and the datum mark must cooperate from this datum mark together to be considered to the direction on processed surface.In case the information in step 142 and 146 is determined, then in step 148, can produce the NC instruction of a workpiece of cutting, for example in Figure 12, carry out this preprocessing molded component 144.In each cutting, only excise a certain amount of material, therefore, should be parallel to this surface (for example surperficial 26b) and be offset for moving instructions that this instrument blade 140 produced to a direction, this surface be the head of instrument blade 140 in the every part of instrument blade 140 through being contacted in once, this instrument blade 140 moves along the passage that each insertion point limited on the limit 141 of profiled surface 26a and 28a intersection.Gradually moving this instrument blade 140 towards this surface 28b like this approaches identical with profiled surface 28a up to the track that is cut.On portion of channel, the side of this instrument blade 140 with the part of surperficial 26b be resected to make it be similar to profiled surface 26a till.Carry out the fine finishining cutting with process technology known in the Numeric Control Technology then.

Under the situation with a quite short preprocessing workpiece 144 of blade (similar as shown in Figure 12 blade) cutting, preferably end face 150 places near surperficial 28b begin cutting.Instrument blade 140 shifted to gradually surperficial 26b up to this surface with till it does not contact, then, starting point moves on to a position, outstanding appearance as shown in figure 12 removes to process this surface 26b near the outer side edges of surperficial 26b.

The benefit that next step provides is processed at different involute molded components 48 for provided as one homogeneous element, bending forming parts 46 and the guided bend molded component 50 that can use preprocessing.This parting surface, it is the surface 152 of element bending forming parts 46 among Fig. 3, the surface 155 of involute molded component 48 and at molded component 46 among the surface 154 of guided bend molded component 50, Figure 10 among Fig. 7,48 and 50 are processed to make each and every one molded component 46,48 and 50 by suitable aligning levelling with the surface of surface 154 contacted involute molded components 48 when being assembled.This be by be similar to each form that each end face that surperficial described mode cuts this workpiece (as workpiece 144) is equivalent to form this simulation between the element processing block parts up to the surface of this end face at each and corresponding each point (being simulation points 12 or 18) till finish.

Process the last step of this workpiece and be the position (step 156) of calculating boring and in step 158, produce the NC instruction, with in these positions the end face 160 to workpiece hole.The hole that three kinds of different types are arranged; Each holes for clamping 92, heating control hole 94 and bottoming hole 93.In element bending forming parts 46, may have only two holes for clamping 92, and heating control hole 94 and bottoming hole 93 each one.In guided bend molded component 50, have four holes for clamping 92, and heating control hole 94, bottoming hole 93 each two.In involute molded component 48, the number in hole depends on this part length, and this length is to change.Should be identical in the spacing between each hole in these all three kinds of molded components 46,48 and 50, as shown in Figure 3.

The position of hole 92-94 is offset a preset distance according to these holes from surperficial 28a and 30a to be determined, and is produced along each camber line that is made of each simulation points by the identical mode of each limit insertion of aforesaid coil that a string point determines.Can on surface 160, hole 92,94 and 93 then with the described normal space of Fig. 3.

This step has been finished the generation of NC instruction to one of processing component.This process is carried out in full repeatedly to the parts of required processing.The NC instruction of each parts is stored in the independent memory, and is provided in the five axis NC processing machines 114 in order to process this preprocessing parts 116.Then this processing component is assemblied on part stent 52,56 and 66, so that be formed as described above stator coil end 24.

Can make a stator coil former according to said method, be a week so make the preprocessing stage of a generator by reducing to method of the present invention with general required six week of conventional former.In addition, it also is possible reducing the manufacturing cycle, just can make second group of former because only need add several hrs, even if the second set of pieces bending forming parts 46 and guided bend molded component 50 have been ready, then the time that need add still less.This will allow to be shaped simultaneously and solidify two stator coils.In addition, the former of the volume ratio routine of shaping surface processing bulk of the present invention is little a lot.During curing will therefore reduce for the 24 required times of heating and cooling stator coil end.

The feature and advantage of obviously visible many feature and advantage of the present invention and all these equipment that claims covered undetermined all belong to design scope of the present invention from describe in detail.Furthermore, because the skilled people of art technology is easy to logarithm value modification and improvement.So do not expect to limit the scope of the invention with foregoing accurate structure and operation.Therefore, all suitable modifications and equivalence all will be appealed to the design scope of the present invention that falls into.

Claims (16)

1, the building mortion of a stator coil end (24) is characterized by described device and comprises:

At least one has corresponding to the molded component of the profiled surface of a shape (24b) (26a, 28a, 30a) (46,48,50), and stator coil end (24) promptly is formed this shape; And

A supporting member (52,56,66) is used to support at least one molded component.

2, a device as claimed in claim 1, wherein said at least one molded component (46,48,50) comprise at least two molded components (46,48,50), wherein each has corresponding to an adjacent molded component (46,48,50) parting surface on (152,154,155), these at least two molded components (46,48,50) be aligned and be aligned to shape (24b), there because corresponding each parting surface (152,154,155) be aligned with each other levelling and place, can form stator coil end (24).

3, a device as claimed in claim 2, wherein said supporting construction include corresponding to each described molded component (46,48,50) support (52,56,66) independently.

4, a device as claimed in claim 3, wherein said at least two molded components (46,48,50) comprising:

Element bending forming parts (46);

An involute molded component (48) can be aimed at described element bending forming parts (46) levelling; And

A guided bend molded component (50) can be aimed at described involute molded component (48) levelling.

5, the described device of claim 4, wherein said device is used for a unfashioned stator coil of shaping (120) and described part stent (52,56,66) comprising:

A platen (52) is used to support described element bending forming parts (46) and this unfashioned stator coil (120);

A workbench (56) is used for directly supporting described involute molded component (48), and it is aimed at described element bending forming parts (46) levelling; And

An auxiliary table (66), it is being supported by described workbench (56) and is being used for directly supporting described guided bend molded component (50) it is aimed at described involute molded component (48) levelling.

6, a kind of device as claimed in claim 5, one of profiled surface (28a) of wherein said element bending forming parts (46) has the crooked arc that has the center; And

Wherein said stator coil end former device also comprises the crooked pin (26) of element, and it can be contained in the center that one of profiled surface (28a) of being positioned at described element bending forming parts (46) on the described platform (52) is gone up arc.

7, two devices as claimed in claim 5, wherein said guided bend molded component (50) has a basic arc and a wherein said stator coil end building mortion that has center curvature and also comprises a guided bend pin (78), it can be contained on the workbench (56), and it has the center position of basic arc that an axis is inserted in the bending of described guided bend molded component 50.

8, a device as claimed in claim 7, also include a guided bend dowelled joint device (84), it can be attached on the described guided bend molded component (50), is used for this guided bend pin (78) is supported on the center of the basic arc of described guided bend molded component (50).

9, constitute a kind of method of a stator coil end former, comprise the step (100,102) of a stator coil end (24) shape that limits with one group of three-dimensional data (104), it is characterized by:

(a) set up (106) according to these group data (104), Numerical Control instruction (108) be used to cut a workpiece (116,144) produce profiled surface corresponding to this stator coil end (24) shape (26a, 28a, 30a); And

(b) utilize Digit Control Machine Tool processing (114) this workpiece (116,144) to produce a kind of profiled surface (46,48,50) by numerical control instruction (108) control.

10, a kind of method as claimed in claim 9, wherein step (a) also has the feature of following step,

(a1) these group data (104) of operation (126) are used to locate and respectively process axis to produce the point of one group of conversion; And

(a2) conversion (148,150) this group transform data becomes the Numerical Control instruction.

11, a kind of method as claimed in claim 10 also has characterization step (c), and assembling (118) this molded component (48,50) can be aimed at this stator coil end levelling on a support (55,56).

12, a kind of method as claimed in claim 9, step wherein (a) is characterized as in addition, set up (158) additional Nc instruction, be used for being parallel in fact one of this profiled surface (26a) and in fact perpendicular to another profiled surface (28a, the tight hole (92) of drill point is gone up on a surface (160) 30a), and

Wherein step (b) is characterized as in addition, utilizes by the Digit Control Machine Tool of additional numerical control commands for controlling and bore these holes for clamping on workpiece.

13, a kind of method as claimed in claim 9, wherein this workpiece (116,144) is to be made of independent parts,

Wherein step (a) comprises that generation (106) is corresponding to this workpiece (116, the independent numerical control instruction of the parts that 144) each is independent, this independent numerical control instruction comprises some instructions like this, in order to form parting surface (152,154,155) be suitable for levelling and be aligned to shape corresponding to the stator coil end (24) on each independent parts of this workpiece (116,144)

Wherein step (b) comprises each parts of processing the independent parts of (114) this workpiece (116,144) respectively, comprises processing this parting surface (152,154,155), and the common levelling of the independent parts of itself and this is aimed at.

14, a kind of method as claimed in claim 13 also comprise step (c) parts that each is independent assemblings (118) on a support (52,56,66) suitably levelling aim at.

15, a kind of method as claimed in claim 14,

Wherein workpiece (116,144) has the surface of the processing given with each interior independent parts; And

Wherein step (a) comprises foundation (148) numerical control instruction, be used to process this surface of giving processing (26b, 28b) with produce this profiled surface (26a, 28b).

16, a kind of method as claimed in claim 9, wherein this stator coil end (24) has element bending (42), involute (40) and each parts of guided bend (44),

Step (a) and (b) further be characterized as wherein, set up (106) numerical control instruction (108) and processing (114) this workpiece (116 respectively, 144), to go up this profiled surface of processing (26a at this workpiece (116), 28a) produce an involute molded component (48) and generation and this profiled surface (26a, 28a) crossing parting surface (155); And further be characterized as following step:

(c) from the element of previous formation and guiding molded component (46,50), select a pair of element and guided bend molded component (46,50) corresponding to the shape of this element of this stator coil end (24) and guided bend parts (42,44); And

(d) assembling (118) this involute molded component (48) and this is to element and guided bend molded component (46,50) on a support (56), become by the determined levelling of parting surface (155) and aim at and corresponding to the shape of this stator coil end (24).

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